Washing-machine.



G. C. DUNHAM. WASHING MACHINE. APPLICATION FILED JAN. 14, 1910.

Patented Feb. 7, 1911.

2 SHEETShSHEET 1.

OJIEI,

/NVENTOH www @QQ/@ Rigi G. C, DUNHAM. WASHING MACHINE. APPLICATION FILED JAN.14,1910.

Patented Feb. 7, 1911.

` To all whom 'it may/concern:

' UNITED ATEs-PATENCE OFFICE.

cnous-Ec. "DUNIIAILoF omeI'rnm'rI, oHIo.

WASHING-MACHINE. I

Be it known `that I', Geenen C. DUNHM, residing at Cincinnati, inthe county of Hamilton and State of Ohio, have invented certain new and 'useful Improvements in .Washingl\lachines, of which the following is a specification.

My invention is an improved Washing machine of the reciprocating pounder type,l and the invention primarily-hasf'for its ob.-l ject to provide a machine'of the type stated ot a simple and ketlective construction, in which the parts are so designedto eoperate that line and delicate fabrics maybe washed with equal facility as coarse fabricSa-nd with little or no danger of injury thereto.

' l`o this end my inventionprovides a tub` or casing having smooth. inner Walls' and a lid whereby'Y the tub may be elos'ed'substanliallv water-tight, a pair of` reciprocating pounder air compressor sections operating in the tub to Iimpart an undulatingmotion to the clothes and washing fluid in the tub and to force compressed air and washing fluid to flow-through the clothes,'thecom pressorfpounder having provisions `for obtaining a constant supply o'f air from the outside of "the tub 'and' the compressor'- pounder sections also conform in their-out# line or shape, each to substantially one-half the cross sectional voutline of the tub in which the)1 are used. This givesthe greatest' possible capacity to the compressorpounder.-

My invention also provides means for so mounting the compressor-pounder on the lid and the motive power therefor also on the lid, and so connecting the lid to the tub that the same may be moved out ofl aline-A inent with the tub when it is desired to remove or insert the clothes to be.'washed.

Those novel details of constructiomcom# bination and arrangementof parts, all ofy which will be hereinafter 'fully described and specically pointed out in thefa'ppended claims, 'also constitute' a part of my'i'nveng In the drawings,-Figure 1, is a perspective view of my invention adapted to be operated by.a Water or other motor of the' reciprocating type. FigQQ,4 isa similar view ot the invention adapted for manual operafiorr Fig. 3,- is a central vertical longitudinal section of the form shown in Fig. 2, the parts being in their operative position with .he compressor-pounder sections at the limit invention .showing the lid open and moved.

back to permit the ready Withdrawal of clothes from the tub, the lid being shown in dotted lines inthe position it assumes just prior to being closed down on the tub. Fig. 5, isa perspective view 'of the invention with the lid open. Fig. 6, is a detail section on the line 7-7 of Fig. 4.- Fig. 7, is a detail enlarged section of the valvev mechanism showing how the compressor-pounder devices are jointed to the pounder heads. Fig.

.8,- is a detail sectional view of the` hinge lid support; Fig. 9, is a detail section on the fline 9 9 of Fig'.l 8.-'

Referring now to' the 'accompanying drawingsin which like numerals and letters of reference indicate like parts in all of the figures, 1 represents the tub or barrel which has its inner Wall surface smooth, and is closed v'by a lid 2. The tub 1 is provided with a bracket 3 to which a block or plate 4 bolted at 5, the bolts 5 passing through .slotsetl in the bracketl to permit of the plate t having sliding movement on the bracket 3 so that 'thel lid can be lmoved back to bring the compressor-pounders out of the Way when the tub is opened. The lid 2 is hinged atto the plate 4 and has a stop 7 to engage the plate 4 and support the lid and its carried parts when vthe lid is open. The lid is 'securelyheld down to eect a tight closure of the tub by suitable devices 8, as shown in the drawings. f 9 is a post formed of a rod or pipe that is passed through-a central hole in the lid 2 andsecured rigidl)r in place by a collar 10 and nut 11, the post having an elbow 9a terninatingjn la pivot bolt or pin 9b to receive a walking beam 12. The walking beam 12 is secured 4to the pin 9b bya nut 9' to have pivotal movementthereon,`and has a short arin 12 and pair of a-liningilong arms 12b atright angles to the arms 12'51"-` The arms 12* have'a slot 12 near their`ends for a purpose hereinafter to appear. v

13--13 are two hollowpipes which pass through holes in the lid. and whose upper ends are slit .at 13"to.receive the ends of the armn 12b of: the Walking beamV 12. to jvhich they vare pivoted at 13". The arms 12"` are slotted to' permit passage of the pivotv pins or bolts 13", and tol form. an opening Into the pipe 13. The post 9, as before stated, is

located centrallyon the lid,l while vthe pipes ISpecification f Letters Patent. 5' '.Pteted Feb, 7|, 1911, 'Application mea Jnuay 14, 1910. seria1 No. 538,079.

i p of'their stroke. Fig. 4 is a detail sectional l orhollou1 rods 1.3Ipss through holes located about midway between `the rim ofthe lid and the v center thereof. y

Within the'tub 1 the'pipes 13 each carry a `section of a 1 vcompressor-pounder 14, formed of two half-sections, one of which is attached to-'each pi e 13,and the compressor-l pounder'14,'.in p an view has an outline substantially that of one half'thecross `sectional outline of the-tub.'v In other Words, when the -tub '-1 is round or circular, in cross section, each compressor-pounder section will be ofsemi-circla'r form; Each com-l pressorepounder section 14 comprises a base plate 14al and` a depending rim 14"`14c, the portion 14b of which is curved to conform to the curvature vof the tub, while that portion 14c is straight across. VThe chamber formed in the rim 14h-414 is sub-divided by parti; tions 1,4d into a plurality of compartments,

the partitionslfi,d having portions out away. adjacent tothe plate/14'l to -form a1r pas' sages. The pipe 13 passes through a hole in the base plate offthe compressor-pounder section14 and is secured thereto'byl a collar 15 and a valve casin 16 :with the interposed Washer 17.' Theco l ar15 and-valve casing V16 are threadedonto the p1pe13, as indicated. -The valve casing 16 hasareduced part 16'a that threads onto vthe pip"e13,fa`1f1d4 an enlarged part 16" to receivethe ldisk valve 16c that closes the end ofthe -pipe 13 on the down' stroke thereo* A valve stop '161 is carried'by the casing 16 against 4which `the valve 16c rests on the up stroke of the pipe .-13.- =The .pipe13 communicates with .A the 4*' "design and varied to suitthe requirements of the trade. Y

In the 'practicaliapplication of my invenc othesl to be washed are placed -i'n'I tion the the tub 1 togethervwith the Washing vfluid, the lid is secured down, thus effecting a. substantially ti ht closureof the tub. Power is `then app 'edf to"-the"walking.beam 12 (eitherthroughthe m'otor27 orlever 18, as the lcase :mayv` be): and the compressorpounder sections" arecaused to move alternately u and down. This causes air to be .admitte .into the compressor-pounder sec-.-

.tion chambers on the" up stroke of the re- -spective section through the pipes 13 and valve mechanism 16. On the down stroke the air within the compressor-pounder secpower dein the drawings. As the compressorponder sections are alternately-moved up and dow'n, the clothes and Washing fluid are tions 14 is forced through 'the clothes. to` 'gether .with the Water, as shown in Fig. 3

caused to perform a continuous oscillating motion, thus effecting kagitation of the' same and by making the fluid level about one-haltl or three-fourths the tubs capacity the clothes are alternately lifted out of the Water and immersed under the samefas the sections 14 are reciprocated.

By having the topv f it tightly on 'the tub 1 the air from Within thel tub escapes but slowly so that a pressure greater' than atmospheric pressure may be maintained within the tub during the Washing operation to supply a greaterquantity of air to thetub than is possible with an open'tub and there' by affording amore abundant supply of Oxy: gen ,to the washing fluid and" thus assisting Vit in its detergent operation.A Again by A I making all of the operating parts of my inlve'ntion of such design that-..tl1ey.may' be mountedon the top`of the tub they may .be moved out of the way whenrcqu-ired Vby a single operation.

Whenthe lid is swung open the plate 4 is shoved back from the 'position showny in 'dotted lines inFig. 4, to the position shown in `fulllines in Fig. 4, so that when the lid is open the compressor-pounder 14 will not be in the way of removingthe clothes, or inserting the'clothcs, as the case may be.

From the foregoing description taken in connection with the accompanying. drawings it is thought the complete construction,

`operation and many advantages of lmy invention will be readily understood by those skilled in the art to which the invention appertains, and- I desire to say that slight changes of construction may be readily made Without ,departing from' the spirit of the invention or thevscope of the appended claims.

1. A washing machine comprising a` tub, a bracket mountedl on said tub, a plate slidable on said bracket a lid hinged to said plate to effect a closure of said tub, a -post supported by said lid and having a projection extending at right angles, a walking beam pivoted. to said post, said' walking beam 'having a central lever portion, apower appl'yingA device connected with lsaid cent-rai lever portion of said walki `beam and wholly supported on the top of. said lid, hoi..

low pipes passing through apertures inthe lid of said tub, and said hollow ipes'being ivoted toI said walking beam, dbmpressorgou'nders carried by said pipes within said tub, Iall being arranged substantially as, shown and described.'

i 2. A washingl machine comprising a tub having a smooth inner wall, a fiat lid for closing said tub, a post centrally mounted thereto a power applying device for oscillati on the lid and having a bearing extended ing said walking beam, compressor-pounders l0 at right angles to the post'propeLaT-shaped within said tub on the ends of said pipes, Walking beam pivoted to said extended bearsaid pipes projecting;` through apertures in ing, a pair of pipes pivoted to the ends lof the lid of said tub, substantially as shown said Walking beam, said Walkingbeamhavand described.

ing slots in which the pivots of said pipes GEORGE C. DUNHAM. operate, the intermediate arm of e said T-shaped Walking beam having Connected Witnesses JAMES C. DUNHAM, CHAs. S. BELL. 

